Stop motion



K. SLOAT STOP MOTION l. 2 9. l 6. a u A e l i F ts-Shegt 1 @ct. l6 1923.

K.SLOAT STOP MOTION Filed Aug. 6, 1921 6 Sheets-Sheet 2 TgZv 1 0m. 16,E923. 1,475,292 I K. SLQAT STOP MQTION Filed Aug. 6, 1921 6 Sheets-Sheet5 K. SLOAT STOP MQTION 6 Sheets-Sheet 4 Filed Aug. 6, 1921 K. SLOAT STOPMOTION Filed Aug. 6, 1921 6 Sheets-Sheet 5 Oct. 16 1923. 1,471,292

K. SLOAT STOP MOTION Filed Aug. 6, 1921 6 Sheets-Sheet 6 Patented Get.16, 1923.

UNHTEE STATE PATENT @FFEQE.

KARL SLOAT, OF SCRANTON, PENNSYLVANIA; LOUISE E. SLOAT ADMINISTRATRIX OFSAID KARL SLOAT, DECEASED, ASSIGNOR TO SCRANTON SILK MACHINE COMPANY, OFSCRANTON, PENNSYLVANIA, A ,CORPORATION OF PENNSYLVANIA.

STOP MOTION.

Application filed August 6, 1921.

To all whom it may concern:

Be it known that I, KARL' SLOAT, a citizen of the United States,residing in Scranton, Pennsylvania, have invented certain Improvementsin Stop Motions, of which the following is a specification.

My invention relates to stop motions for thread Winding and similarmachines, the object of the invention being to provide a novel andimproved positive stop motion operative in the event of a broken threador of the running out of a spool for interrupting the feeding of thestrands and for braking the various moving parts with the least possibledelay. A further object is the provision of a novel constructionpermitting adjustment by builders of silk throwing and other machines toaccommodate the machines for any size of spool or bobbin.

In the attached drawings:

Figure 1, is a side elevation of stop mechanism made in accordance withmy invention;

Fig. 2, is a fragmentary elevation of a portion of the mechanism;

Fig. 3, is a plan view of the elements illustrated in Fig. 2;

Fig. 4, is a fragmentary elevation of another portion of the stopmechanism;

Fig. 5, is a plan view of the elements illustrated in Fig. 4;

Fig. 6, is a face view of the gear train illustrated in Fig. 4;

Fig. 7, is. a fragmentary elevation of a still further portion of themechanism;

Fig. 8, is a plan view of the elements illustrated in Fig. 7;

Fig. 9, is a horizontal section on the line 99, Fig. 7, and

Fig. 10, is a vertical section on the line 10-10, Fig. 9.

With reference to the drawings, my device comprises a suitablesupporting structure 1 to which is secured a subsupport 2' comprising aseries of parallel pins 3, the member 2 being secured to the supportingstructure 1, in the present instance, by means of bolts 4, 4. As clearlyillustrated in Fig. 1, the pins 3 are disposed at a slight angle to thehorizontal and receive bobbins or spools 5 upon which has previouslybeen wound the threads or strands 6 to be doubled and twisted.

Serial No. 490,303.

Pivotally mounted upon a spindle 7 supported in the outer'end of abracket 8 suitably secured to the supporting structure 1 at a pointbelow the member 2, is a series of drop wires 9 corresponding in numberto the bobbins 5 and having attheir outer ends heads 10 in which areeyes 11 through which the threads 6 pass, said threads passing from theeyes 11 over a rod or bar 12 held in a suitable bracket 13 secured bymeans of bolts to the supporting frame 1. The bracket 13 also supports arod 14 disposed outwardly of the drop wires 9, which rod 14 limits theoutward movement of the drop wires -from the supporting structure.

After passing through the eyes 11 and over the rod 12, the thread passesto other mechanism of the machine hereinafter to be described, and thethreads 6 are adapted, as

an element- 17 pivotally mounted in bear- U,

ings 18, 18, upon a rider 19, which rider has fixed thereto and iscarried by a rod 20 slidably mounted in bearings 21, 21, upon thebracket 8, the rear end of the rider being-supported by a pin 22 mountedin bearings 23 upon the bracket 8, the rider having in its rear side aslot 24 through which the.

said pin. 22 extends.

It will be apparent from the foregoing 1 description that the member 17is free to 'oscillate in a vertical plane around the spinpin while therider is adapted dle or pivot to reciprocat e in a substantiallyhorizonta plane upon the bracket 8.

A spring 25 is interposed between one of the bearings 21 and a side of.the rider 19and tends to retain the rider in a position in which theendof therod 2O bears against the face of a cam 26 which is secured to ashaft or rod 27, the upper end of which is mounted in a vertical bearing28 in the bracket 8 and has secured thereto an operating lever 29, bymeans of which the shaft may be manually oscillated. A spring 30 iscarried by the rod 27 and tends'tov oscillate the rod in the'directionindicated by the arrow in Fig. 3, and there is in the cam 26 a notch orrecess 31 which normally, duringoperation. of the machine, is occupiedby the end of the rod 20, which thus functions as a latch or detentpreventing oscillation of the rod 27 by the spring from the normalrunning position in which it is shown in Figure 2.

Supported in a bearing 32 secured to the supporting structure 1 by meansof bolts 33, 33, is a reciprocating rod 34, which latter receives itsreciprocatory motion from mechanism of the machine (not shown) and whichcarries a dog 35 having a depending arm 36. When in its normal position,as shown in full lines in Fig. 2, the rear end 17 a of the member 17lies below the path of the depending arm 36 of the dog 35, but when theelement 17 is engaged by the arm of the drop wires 9, which it is whenany one of the drop wires is released by reason of the breaking of thethread, the said rear end 17 is elevated as shown by the broken lines inFig. 2, and in the elevated position lies in the path of the arm 36 ofthe dog 35. It will be apparent that as the dog 35 reciprocates and thearm 36 engages the element 17 in the manner described, the lattertogether with the entire rider 19 will be shifted, with the result thatthe rod 20 is retracted from the recess 31 in the cam 26, therebypermitting the spring to oscillate the rod 27 in the direction indicatedby the arrow in big. 3, the said cam 26 being thereby shifted through anangle of substantially 90 and preventing return of the rod 20 to thelock ing position until the rod 27 has been shifted manually by means ofthe lever 29 to the original operating position.

The threads 6 after passing through the eyes 11 and over the rod 12 arepassed through a sin le eye 37 to a pair of take-up rolls 38, 38, w icheye and rolls are carried by a standard 39 having extending downwardlytherefrom a stem 40 mounted in a vertical bearin 41 in a bracket 42which is fixed in suitab e manner, as by a bolt 43, to the supportingstructure 1. The said rolls 38, 38, are each mounted upon a spindle 44which are established in bearings 45, 45, on the said bracket 39, saidspindles 44 having respectively attached to their rearward ends a pinion46 and a bevel pinion 47, said pinions 46 and 47 being operativelyconnected by means of.an intermediate pinion 48 rotatably mounted uponthe bracket 39. As best illustrated in Fig. 4, the pinion 47 iselongated so as to combine a straight toothed pinion with the bevel, andthe beveled portion of the gear meshes with a bevel gear 49 carried b ashaft 50, which is continuously rotated rom any suitable source of powerin the machine, the shaft 50 being supported in a suitable, bearing 51secured by means of bolts 52, 52, to the supporting structure 1 A spring53 is associated with the spindle 40 and tends to retain the standard 39me position in which the bevel gear 47 meshes with the bevel 49, andmeans now to be de scribed is provided whereby when the rod 27 isoscillated by the spring 30 in the manner previously described, thebracket 39 is oscillated upon its pivotal mounting to withdraw thepinion 47 from engagement with the gear 49, thereby disconnecting thetakeup rolls from the source of power which actuates them. The abovementioned means for oscillating the bracket 39 comprises in the presentinstance an arm 54 on the spindle 4O below the bearing 41, which arm byreason of the spring 53 normally is retained in contact with aneccentric cam 55 upon the rod 27. The eccentric cam during operation ofthe machine occupies the position best shown in ig. 5, but when the rod27 is escillated u en release of the rod 27 by the rod 20, the cam 55shifts the said arm 54 and the entire standard 39 in the direction ofthe arrow in Fig. 5, thereby disengaging the pinion 47 from the gear 49.A. stop provided limiting th oscillation of the rod '27, and consistingof an arm on the rod 27 having at its outer end a depending portion 57which engages the side of the horizontal bracket arm 42, therebylimiting the oscillation of the rod 27 in both directions. As best shownin Fig. 4, a bearing 58 is provided in the bracket 42 for the rod 27.

From the take-up rolls the thread passes to a guide 59, and thence to atraveler 60 on a spinner ring 61 which is mounted upon an arm 62 on arod 63, which latter extends upwardly from a traverse rail 64 and whichis mounted in an extended bearing sleeve 65 fixed'in a bearing 66 at theend of a bracket arm 67. The latter arm 67 is secured by suitable means,such as a bolt 68, to a second bracket 69 secured by bolts 70, 70, tothe supporting structure 1. Adjusting screws 71, 71, are provided at therear end of the arm 67 whereby, in conjunction with a ball support 72 onthe under side of the arm 67, an adjustment of the bearing 66 intoproper alignment may be obtained.

Extending around the sleeve 65 and resting upon the top of the arm 66 isa sleeve 73 which has extending therefrom an arm 74 in which issupported a stem or spindle 75, said spindle being inserted through anaperture 76 in said arm and having upon its lower end a nut 77 betweenthe upper face of which and the under side of the arm 74 is confined aspring 78 tending to hold the stem fixed in the said aperture? Thespindle carries an integral collar 79 which provides a supportingshoulder for the stem and has projecting therefrom :1 lug 7 9 which liesbetween two projections 80 and 81 upon the arm 74 whereby movement ofthe spindle 75 in the arm is limited. A suitable washer 82 is in side inwhich the upper end of the spindle 75 is established. Pins 87, 87,extend upwardly from the pulley 85 and occupy recesses 88, 88, in oneend of a spool 89 which has an axial passage extending therethrough forthe reception of the upper end of the stem 84 upon which the spool issupported, the spool extending upwardly awa through the center of thespinner ring 61, as best shown in Fig. 10.

A stop is provided in the form of a wire 90 which passes around thespindle 75 directly beneath the arm 74 and between the arm and thespring 78 for normally pre-' venting upward movement of the stem 84 withits associated parts in the recess 83,

said wire extending upwardly and having its end 91 turned inwardly anddownwardly and overlying the flange 92 of the pulley 85, while the lowerextremity 93 of the wire 90 extends downwardly and lies against one faceof the nut 77 whereby the latter is prevented from turning upon thespindle 75.

The sleeve 73 carries a coiled spring 94, one end of which rests in backof the arm 74, while the upper end passes through an aperture 95 in a u96 which depends from an arm 97 of a s eeve 98 secured to the sleeveabove the sleeve 73. The spring 94 exerts a force tending to swing thearm 74 with its supported elements to bring the face of the pulley 85against a traveling belt 99 whereby the said pulley together with thespool 89 are revolved.

Attached to the arm 97 by means of a screw 100 isa friction stop orbrake 101 which, when the arm 74 is moved backwardly away from the belt99 in a manner hereinafter to be described, lies in the path .of andengages the side of the pulley 85,

said stop by friction existing between itself and the pulley acting as abrake to prevent rotation of the latter.

The movement of the arm 74away from the .belt 99 is accomplished bymeans of a cam 102 which is fixed in suitable manner, as by a set bolt103, to the rod 27, and is adapted when'the rod is oscillated todisengage the pinion 47 from the gear 49, in themanner previouslydescribed, to bear against the side of the arm 74 and to force itoutwardly whereby the pulley 85 is carried from the belt 99 and forcedagainst the friction brake or stop 101.

As best shown in Fig. 10, the rod 63 is secured to thetraverse bar 64 bymeans of t a bracket 104 through, an aperture 105 in which the lower endof the'bar extends,

there being secured to the lower end of the bar an arm 107, the end ofwhich underlies the bracket 104. In this manner, the said rod 63 is freeto rotate with respect to its supports, and means is provided forinterconnecting the rod 63 with the arm 74 whereby when the latter isoscillated it rotates correspondingly the rod 63' and thereby retainsthe-spo0l 89 and the ring 61 in their proper relative positions, inwhich the former is concentric with the latter. This correspondingmovement of the arm 74 and shaft. 63 is obtained'by means of a rod 108which is secured in the outer end of the arm 107 and which extendsupwardly through a slotted recess 109 in the arm 74.

The operation of the device is as follows: The threads are drawn orunwound from the spool 5 by means of the rolls 38, and as they leave thespools pass, in the manner previously described, through the eyes 11 ofthe drop wires 9. In the normal running position of the machine, thedrop wires are sup- 7 ported by the threads in an upright position withtheir rearward arms 15 elevated, as shown in Fig. 2, whereby the end 17of the pivoted member 17 is allowed to lie in a depressed position belowthe path of the arm 36 of the shoe 35 upon the shaft 34,

which is continually reciprocated from av suitable source of powerduring the operation of the machine. The threads after passing from therolls 38 pass to the traveler 60 on the spinner ring 61, which ring isreciprocated vertically by reason of its connection with the traversearm 64, which is reciprocated vertically from any suitable source ofpower in the machine, the thread in this manner being traversed from topto bottom of the spool-89, which latter is continuously rotated by meansof the pulley 85 and the belt 99. Should any one of the threads thuspassing from the spools 5 break or should the thread be completely 15 todrop backw-ardly, the arm 15 engaging the arm 16 of the member 17 withthe result that the end 17 of the latter is elevated into the path ofthe reciprocating arm 36 of the shoe 35. As a result of the contactbetween the said arm 36 and the member 17 the rod 20 is withdrawn fromthe notch 31 of the cam 26, whereupon the spring 30 acts to oscillatethe rod 27, this oscillation of'the latter rod causing a withdrawal inthe manner previously described of the pinion 47 from the continuouslyrotated bevel gear 49, whereupon the rolls 38- being separated fromtheir source of motive power, no longer act to draw the remainingthreads from the spools 5. At the same time, the cam 102 acts to forcethe arm 74 backwardly, which original position by means of the handle29' arm carries with it in its movement the venting further winding ofthe thread upon the spool 89. After the broken thread has been mended ora new spool inserted on the support in place of the one which has runout, oscillation of the rod .27 to its permits the spring 25 to forcethe rod again into the notch 31 of the cam 26 whereby the mechanism isretained in the runnin position until such time as, another threa maybreak or a spool become empty.

I claim:

1. In. a stop motion, the combination with a thread controlled element;of acontinuously moving member, a reciprocatory carriage, a springtending to retain said carriage in an advanced position, and an elementmounted on said carria e and movable by the thread controlled e ementinto the path of said continuously movable member whereby said carriageis-shifted' into a retracted posit-ion.

2. In a stop motion, the combination with a thread oontroled element, ofa continuouslyi moving member, a reciprocatory carriage, a springtending to retain said carriage in an advanced position, an elementmounted on said carriage and movable by the thread controlled elementinto therpa th of said continuously movable member wherea threadcontrolled element, of thread feeding mechanism, a shaft controlling theop.- eration of said mechanism. means tending to rotate the shaft tointerrupt the feeding mechanism, a movable element adapted to retain theshaft in the mechanism running position, a continuously reciprocatingelement, and a movable element carried by said retaining element andadapted .to be shifted by said thread controlled element into the pathof the reciprocating member whereby the retaining element is shifted outof engagement with the control shaft.

i. In a stop motion, the combination with a thread controlled element,of thread feeding mechanism, a shaft. controlling the operation of saidmechanism,'means tending to rotate the shaft to interrupt the feedingmechanism, a movable element adapted to retain the shaft in themechanism running position, a continuously reciprocating ele ment, amovable element carried by said retaining element and adapted to beshifted by said thread controlled, element into the path of thereciprocating member whereby structure, a thread receiving element carried by said structure, relatively fixed driving means for said threadreceiving element independent of said structure, an automati callymovable element releasable by said controlled element, and a cam carriedby said automatically movable element andadapted to engage the structurewhen the said element is released to shift the structure and therebyseparatethe thread receiving element from the relatively fixed drivingmeans.

6. In a stop motion, the combination with a thread controlled element,of a rotatable thread receiving element, driving mechanism for saidthread receiving element, means for shifting the thread receivingelement to disengage it from the driving'means, and a distributingelement adapted to reciprocate axially of said receiving element andmovable with the latterLwhen it is shifted out of engagement with thedriving means.

7. In a stop motion, the combination with a thread controlled element,of a fixed sleeve, a standard pivotally mounted on said sleeve, a threadreceiving element mounted on said standard, a relatively fixed drivingmember for said receiving element independent of said standard, meanstending to retain the standard in a position in which the receivingvelement is connected with the driving means,

a reciprocating member, a rod pivotally mounted in said member andextending through the sleeve, a thread distributing element carried bysaid rod adjacent the thread receiving element, automatically movablemeans releasable by said thread controlled element for shifting thestandard to disconnect the thread receiving element from the drivingmeans, and means interconnecting the standard and the said rod wherebyoscillation of the standard entails a corresponding oscillation of therod.

8. In a stop motion, the combination with a thread controlled element,of a rotatable thread receiving element, driving means for thereof, andmeans. for interconnecting the receiving element and the distributingelement whereby the latter is shifted with the former to retain therelative positions thereof. Y

9. In a stop motion, the combination with a rock shaft, ofthread-feeding mechanism fixed to the shaft, thread-receiving mechanismfixed to the shaft driving elements for said feeding and recelvingmechanisms independent of the shaft, and thread-controlled mechanism forrocking the shaft to disconnect the mechanisms from said drivingelements.

10. In a stop motion, the combination with a rock shaft, ofthread-feeding and thread-receiving mechanisms comprising elementsconnected to the shaft and other elements independent of the shaft, andthreadcontrolled mechanism for rockin the shaft to disconnect saidelements an interru (3 operation of the feeding and receiving mecanisms.

KARL SLOAT.

